Look into supporting apns-push-type setting #267
Description
This seems optional but recommended for iPhones/iPads, but not watchOS
apns-push-type (Required for watchOS 6 and later; recommended for macOS, iOS, tvOS, and iPadOS) The value of this header must accurately reflect the contents of your notification’s payload. If there is a mismatch, or if the header is missing on required systems, APNs may return an error, delay the delivery of the notification, or drop it altogether.